Constitutional law professor, Josh Blackman, talks about the fantasy league he created to follow Supreme Court decisions shown South Texas School of Law, 1303 San Jacinto St., Thursday, Jan. 16, 2014, in Houston. ( Melissa Phillip / Houston Chronicle )

Constitutional law professor, Josh Blackman, talks about the...

It started as a lark. What odds would Las Vegas give on the next Supreme Court decision? What if you could compete with others on what the nine judges were going to decide - like players in a fantasy football league?

To continue reading this story, you will need to be a digital subscriber to HoustonChronicle.com.